46 migrants found dead in truck in Texas

At least 46 migrants were found dead Monday in and around a truck that was abandoned on the roadside on the outskirts of the Texas city of San Antonio.

The grim discovery was one of the worst disasters involving migrants in the United States in recent years -- and came five years after a similar deadly incident in the same central Texas city, a few hours from the Mexican border.

"At this time we have processed approximately 46 bodies that have been triaged and tagged and declared deceased," San Antonio Fire Chief Charles Hood told reporters.

He said that 16 people had been transported to hospital alive and conscious -- 12 adults and four children.

There were no initial details on the age or nationality of the deceased.

"The patients that we saw were hot to the touch, they were suffering from heat stroke, heat exhaustion, no signs of water in the vehicle, it was a refrigerated tractor-trailer but there was no visible working A/C unit on that rig," Hood said.

Officials said three people were in custody over the incident.

"Tonight we are dealing with a horrific human tragedy," San Antonio Mayor Ron Nirenberg said.

San Antonio, which lies about 250 kilometers from the border, is a major transit route for people smugglers.